The best and most nuanced take on Scott Forstall’s ouster, unsurprisingly from Michael Lopp:

While I’d continued to hear about the disdain amongst the executive ranks about Forstall after I left Apple, I was still shocked about his departure, because while he was in no way Steve Jobs, he was the best approximation of Steve Jobs that Apple had left. You came to expect a certain amount of disruption around him because that’s how business was done at Apple - it was well-managed internal warfare. Innovation is not born out out of a committee; innovation is a fight. It’s messy, people die, but when the battle is over, something unimaginably significant has been achieved.